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We have 46 questions about mending 'switchmaster'
Changing Switchmaster Valve to Honewell V4073?
Switchmaster 905?
switchmaster 805 not turning?
The timer is not working on my Switchmaster 905 heating timer?
3 way valves?
switchmaster cylinder stat to honeywell cylinder stat?
What is the part no. for a Honeywell three valve?
rReplacing a Switchmaster 3 way motorised valve with a Drayton 3 way valve?
changing 3 port motorised valve?